Bias-free solar hydrogen production at 19.8 mA cm^-2 using perovskite photocathode and lignocellulosic biomass.

ABSTRACT: Solar hydrogen production is one of the ultimate technologies needed to realize a carbon-neutral, sustainable society. However, an energy-intensive water oxidation half-reaction together with the poor performance of conventional inorganic photocatalysts have been big hurdles for practical solar hydrogen production. Here we present a photoelectrochemical cell with a record high photocurrent density of 19.8 mA cm^-2 for hydrogen production by utilizing a high-performance organic-inorganic halide perovskite as a panchromatic absorber and lignocellulosic biomass as an alternative source of electrons working at lower potentials. In addition, value-added chemicals such as vanillin and acetovanillone are produced via the selective depolymerization of lignin in lignocellulosic biomass wh

SUBMITTER: Choi Y 

PROVIDER: S-EPMC9529942 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature